本文整理汇总了C#中LocalTemporary.Emit方法的典型用法代码示例。如果您正苦于以下问题:C# LocalTemporary.Emit方法的具体用法?C# LocalTemporary.Emit怎么用?C# LocalTemporary.Emit使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LocalTemporary
的用法示例。
在下文中一共展示了LocalTemporary.Emit方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Emit
public override void Emit (EmitContext ec)
{
// TODO: generate less temporary variables
LocalTemporary value_target = new LocalTemporary (type);
value_target.AddressOf (ec, AddressOp.Store);
ec.Emit (OpCodes.Initobj, type);
value_target.Emit (ec);
}
示例2: Emit
public override void Emit (EmitContext ec)
{
Label end_label = ec.DefineLabel ();
if (unwrap != null) {
Label is_null_label = ec.DefineLabel ();
unwrap.EmitCheck (ec);
ec.Emit (OpCodes.Brfalse, is_null_label);
//
// When both expressions are nullable the unwrap
// is needed only for null check not for value uwrap
//
if (type.IsNullableType && TypeSpecComparer.IsEqual (NullableInfo.GetUnderlyingType (type), unwrap.Type))
unwrap.Load (ec);
else
left.Emit (ec);
ec.Emit (OpCodes.Br, end_label);
ec.MarkLabel (is_null_label);
right.Emit (ec);
ec.MarkLabel (end_label);
return;
}
//
// Null check is done on original expression not after expression is converted to
// result type. This is in most cases same but when user conversion is involved
// we can end up in situation when user operator does the null handling which is
// not what the operator is supposed to do.
// There is tricky case where cast of left expression is meant to be cast of
// whole source expression (null check is done on it) and cast from right-to-left
// conversion needs to do null check on unconverted source expression.
//
if (user_conversion_left) {
var op_expr = (UserCast) left;
op_expr.Source.Emit (ec);
LocalTemporary temp;
// TODO: More load kinds can be special cased
if (!(op_expr.Source is VariableReference)) {
temp = new LocalTemporary (op_expr.Source.Type);
temp.Store (ec);
temp.Emit (ec);
op_expr.Source = temp;
} else {
temp = null;
}
var right_label = ec.DefineLabel ();
ec.Emit (OpCodes.Brfalse_S, right_label);
left.Emit (ec);
ec.Emit (OpCodes.Br, end_label);
ec.MarkLabel (right_label);
if (temp != null)
temp.Release (ec);
} else {
//
// Common case where expression is not modified before null check and
// we generate better/smaller code
//
left.Emit (ec);
ec.Emit (OpCodes.Dup);
// Only to make verifier happy
if (left.Type.IsGenericParameter)
ec.Emit (OpCodes.Box, left.Type);
ec.Emit (OpCodes.Brtrue, end_label);
ec.Emit (OpCodes.Pop);
}
right.Emit (ec);
ec.MarkLabel (end_label);
}